/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    background-color: #f9f9f9;
    color: #333;
    padding: 0;
    margin: 0;
}

/* Header Section */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #004b8d;
    color: #fff;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
}

.user-profile {
    position: relative;
}

.profile-btn {
    background-color: #0074d9;
    color: #fff;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.profile-btn:hover {
    background-color: #005bb5;
}

.dropdown {
    position: absolute;
    top: 2.5rem;
    right: 0;
    background-color: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    width: 200px;
    padding: 1rem;
    z-index: 1000;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.dropdown.hidden {
    display: none;
    opacity: 0;
    visibility: hidden;
}

.dropdown p {
    margin-bottom: 0.5rem;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #dc3545;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #b02a37;
}

/* Main Content Section */
.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #004b8d;
}

.courses-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.course-item {
    border-bottom: 1px solid #ddd;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.course-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.course-item h3 {
    font-size: 1.2rem;
    color: #222;
    margin-bottom: 0.5rem;
}

.course-item p {
    font-size: 1rem;
    color: #555;
    margin-bottom: 0.5rem;
}

.enroll-btn {
    background-color: #28a745;
    color: #fff;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.enroll-btn:hover {
    background-color: #218838;
}

/* Enrolled Courses Section */
.enrolled-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.enrolled-course {
    padding: 0.5rem;
    background-color: #e9ecef;
    border-radius: 6px;
    color: #333;
    font-weight: 600;
}

.enrolled-course:hover {
    background-color: #d6d8db;
}

/* Progress Tracking Section */
#progress-graph {
    display: block;
    margin: 1rem auto;
    border: 1px solid #ddd;
    border-radius: 8px;
}

/* Feedback Messages */
.feedback {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 2rem;
    border-radius: 6px;
    color: #fff;
    font-size: 1rem;
    z-index: 1000;
}

.feedback-success {
    background-color: #28a745;
}

.feedback-warning {
    background-color: #ffc107;
    color: #333;
}

.feedback-info {
    background-color: #17a2b8;
}

/* Footer Section */
.footer {
    text-align: center;
    padding: 1rem;
    background-color: #f1f1f1;
    color: #888;
    border-top: 1px solid #ddd;
}

.footer p {
    font-size: 0.9rem;
}

/* Utility Classes */
.hidden {
    display: none !important;
}